templfunc.cpp

#include <iostream>

template<typename T>
void func(T)
{
    std::cout << "generic\n";
}

template<>
void func<int>(int)
{
    std::cout << "specialized for int\n";
}

void func(int)
{
    std::cout << "regular function\n";
}

int main()
{
    func(1.5);      // generic
    func<int>(2);   // specialized for int
    func(3);        // regular function

    return 0;
}